Jewel-setting machine



(No M8881. v 8 5 SheetB -Sheet 2. D. H. CHURCH. JEWEL SETTING MACHINE.

No. 488,240. Patented. 1m. 20, 1892. Q

1 cams PETERS 00.. moro- {No Model.) 5 Sheets-Sheet D. H. CHURCH.

JEWEL SETTING MACHINE.

No. 488,240. Patented De0.;20,'1892.

Tm: mums Pz'runs cu. PHOTO UTHO., wnsmum'ou, a. c.

(No Model.) 5 Sheets.-Sheet 4.

D" H. CHURCH. JEWEL SETTING MACHINE.

No. 488,240. PatentedDec. 20, 1892.

[rill/1111111117 (fizz/62732 r5: "cams PETERS co, worou'mm WASHINGTON,u. c.

(No Model.) 5 ShetsSheet 5.

' D. H. CHURCH.

JEWEL SETTING MACHINE. No. 488,240. Patented Dec. 20 ,1892.

Ill

iii

gu Mi m: Ncnms PETERS o0 PHOTOUTNQ" WASHINGYON a u.

FFTQEW DUANE H. CHURCH, OF WALTHAM, MASSACHUSETTS.

JEWEL-SETTING MACHINE.

SPECIFICATION forming part of Letters Patent No. 488,240, dated December20, 1892.

Application filed March 1, 1892.

T0 aZZ whom it may concern/.-

Be it known that I, DUANE H. CHURCH, of WValtham, in the county ofMiddlesex and State of Massachusetts, have invented certain new anduseful Improvements in Jewel-Setting Machines, of which the following isa specification.

This invention relates to a class of machines designed for the purposeof setting jewels, being more particularly adapted for setting smallstones such as are used in watches for the bearings of the respectivearbors.

The object of the invention is toproduce a machine that will perform thework more rapidly, effectively and accurately than has been doneheretofore, thus saving labor and lessening the cost of manufacture.

The invention consists in certain features of novelty which are moreparticularly pointed out in the claims, being first described withreference to the accompanying drawings, in which Figure 1 represents aplan view of a machine constructed according to my invention. Fig. 2represents a front elevation of the same. Fig. 3 is a View taken at theleft of the machine, showing the transverse and longitudinalslide-operating cams. Fig. 4 is a transverse section on line 4, 4 ofFig. 2. Fig. 5 is a view taken to the right of the machine, the top ortransverse slide and operating parts being omitted. Fig. 6 is a detailin section, on a larger scale, of the settingcarrier. Fig. 7 is anenlarged detail of the caliper-supporting frame. Fig. 8 represents thecalipers proper projected from the frame and in operative position, asin Fig. 2. Fig. 9 is an enlarged detail, in front elevation, of themechanism for gaging the movement of the longitudinal slide. Fig. 10 isan enlarged detail of a portion of the same. Fig. 11 is an enlargeddetail plan of the parts shown in Fig. 9, showing also the mechanism forlooking the gage after it has been set to position by the calipers. Fig.12 represents in detail the device employed for adjusting thegagelocking mechanism relatively to its operating cam (see Fig. 4). Fig.13 represents an enlarged detail plan of the longitudinal and transverseslide-operating cams.

All the detail figures are on a larger scale.

Serial No. 423,415. (No model.)

tion from cam 10, Figs. 2, 3, and 13, mounted on the main shaft 11. Itwill thus be seen that as cam 10 releases shaft 8, the springs 5 willmove slide 4 from right to left; and as cam 10 acts on shaft 8 the slide4 is moved from left to right against the tension of said springs 5. Themotion of slide 4 from right to left may also be accomplished bydispensing with springs 5 and substituting in lieu thereof a cam 12,Figs. 2 and 4 mounted on main shaft 11, which cam acts on roller 13carried by shaft 8. It may also be desirable to use springs 5 incombination with the cam 12 and roller 13, the latter acting to give arigid or positive movement on the start, and the former to finish with aless rigid action; however, one is a substitute for the other and theymay be used either separately or together, as desired.

Mounted in ways in the longitudinal slide 4 is a transverselyreciprocating slide 14, Figs. 1, 3 and 4, deriving forward motion from aspring 15, Fig. 1, attached to slide 14 and 16 and to slide 4 at 17.Slide 14 derives backward motion from an arm 18, Figs. 3 and 4, attachedto shaft 19,which is provided on its extremity with an arm 20 operatedupon by cam 21 mounted on the main shaft 11. It will be seen that thisslide 14 has a compound reciprocating motion; being mounted in the slide4 it must necessarily receive the motion of said slide 4 in addition tothe forward and backward motion imparted to it through cam 21 andconnections described. This slide 14 is provided with a tool carrier 22,Figs. 1, 2, 3, and 4, and the compound motion is desired for the purposeof first moving the tool forward to position; second, advancing it toits work; third, withdrawing it when work is completed; and fourth,moving it backward to first position.

On the forward part of the bed 1 of the machine, to the left, is mounteda standard 23 for supporting a spindle 24 provided with a chuck 25 whichis operated by cam 26, Fig.2, through the medium of lever 27. dle is ormay be of any suitable construction. Directly opposite standard 23, tothe right, is mounted a standard 28 for supporting the setting-carrier,which consists of a tube 29, Figs. 1, 2 and 6, the bore of which is of asize sufficiently large to accommodate the settings 30. The tube 29 isprovided at one end with an enlargement 31 for the accommodation of alatch 32 held downward by spring 33. This latch impinges against andholds firmly a rod 34 which is exerting a pressure upon the settings,through the medium of spring 35 and cord 36 (see Figs. 2 and 6).Extending vertically through the bed 1 and base of standard 28 is ashaft 37 Figs. 1 and 2 provided at top and bottom respectively with arms38, 39. Mounted on shaft 11 is a cam 40 which operates upon arm 39 andholds the setting-carrier 29 against the tension of spring 35 throughthe medium of arm 38 and collar 41 on tube 29. When cam 40 releases arm39, spring 35 throws the setting carrier forward, and as the forward endof tube 29 reaches the chuck 25, slide 42 comes in contact with bushingcollar 43 of standard 28 (see Fig. 6) and trips latch 32, thus releasingrod 34 bringing, the entire tension of spring 35 to bear upon thesettings and deposits one in the chuck 25. Cam 40 then acts to retractthe setting carrier; the

first movement of the latter releasing latch 32 which instantly bindsrod 34, relieving the settings of pressure and the setting carrier ismoved back to first position (see Fig. 2).

To the bed of the machine in front is attached the caliper frame 45,Figs. 1, 2 and 7,,

which carries the upper and lower members 46,47 Fig. 8 of the calipersfor measuring the depth of the jewel The upper member 46 is elevated bya spring 48 and is held in action with lower member 47 by spring catch49 (see Figs. 2, 7 and 8).

Beneath the bed of the machine running transversely is a shaft 50, Figs.2, 4, 9,10 and 11, carrying at its front and rear extremities arms 51,52, respectively. Arm 51 acts in connection with the lower member 47 ofthe calipers and, through the medium of shaft and arm 52, moves the gage53 to the position required by the jewel in the calipers, Figs. 2 and 9.The head of gage 53 is flattened and operates in connection with slide 4through set screw 54 Figs. 1 and 2. For a portion of its length the gage53 is incased in a tube 55 split at 56 Fig. 9 to form a spring-lip whichis acted on by rod 61 of the locking mechanism now to be described.

In the bed 1 of the machine is mounted a shaft 57 Figs. 2, 4, 11, and12, provided at one extremity with an arm 58 operating in connectionwith a cam 59 on the main shaft 11. At

the other extremity shaft 57 is cut away or notched at 60 Fig. 11 to actupon a transversely This spindisposed rod 61 which, when brought intoaction, binds spring-lip of tube 55 firmly against the gage 53, thuslooking it securely to the position to which it is moved by the jewelinthe calipers. It will thus be seen that by placing the jewel j (Fig. 8)in the lower member47 of the calipers and bringing the upper member 46to position shown in Fig. 2, the gage 53 will be moved inward more orless according to the depth of the jewel, where said gage is locked byrod 61 as described. Cam 10, now releasing shaft 8, allows springs 5 toact and slide 4 is moved until set screw 54 comes in contact with gage53. Thus the slide 4 is Figs. 2 and 5, provided with a worm 63 which 0drives worm-wheel 64 mounted on the main shaft 11. Main shaft 11 derivesits motion from worm-gearing 63, 64 at the extreme right of the machine.At the extreme left of the machine, mounted on the main shaft, are the 5slide operating cams 10 21. The outer cam 21 controls the movements ofslide 14, and

the inner cam 10 controls the movements of slide 4, as alreadydescribed.

The operation of the machine is as follows: 100

The machine starts with roller of arm 20 resting on cam 21 at a Fig. 3.Just previous to this point, cam 26 operates on arm 27 and opens chuck25. The chuck being opened,

cam 40 now releases arm 39 and allows spring [05 35 to throw forward thesetting carrier which deposits a setting 30 in the opened chuck 25. Thesetting being deposited, cam 26 releases arm 27 and chuck 25 securessetting 30. Cam

40 now returns the setting carrier to first po- IIO sition (see Fig. 2).While these operations are taking place the roller of arm 20 istraveling from a to b, Fig. 3 on cam 21, and the operator has placed ajewel in the calipers 46,

47 and moved the gage 53 to position. Oam I15 59 now acts on arm 58,rocks shaft 57, throws rod 61 backward, and locks the gage 53 toposition, Fig. 11. While the locking action is taking place, roller ofarm 20 is traveling from b to c, Fig. 3 and spring 15 acts to move 12oslide 14 forward, which bringstool 22 to position for.squaringofffltliesett nfireyiousfto drilling themavity for thexjewel.This squaring off takes place while the roller is traveling from c to d,and at cl the tool is moved I25 slightly forward and brought to positionfor drilling the jewel cavity. At this point of the operation cam 10releases shaft 8 and allows springs 5 to act and move slide 4 to theleft until set screw 54 comes in contact with 1 0 the gage 53, thusallowing the tool 22 to drill the cavity in setting 30 of a depthcorrespond- The tool carrier 22 is ing to the depth of the jewel, as setby the gage 53. The cavity being bored, cam 10 instantly acts on shaft 8and moves it to first position, thus, through the medium of arm 9,returning slide 4 which withdraws the tool 22. While this drilling istaking place, roller of arm 20 is traveling from cl to e and slide 14receives only the motion of slide 4 as the path from d to e of cam 21 isconcentric with shaft 11. At'e cam 21 acts on arm 20, and when theroller has reached point f slide 14 is returned to its first position.From f to g the path is concentric with the shaft 11 and slide 14remains stationary. While the roller is traveling from e to g on cam 21,cam 59 releases the locking mechanism, and the operator removes thejewel from the calipers and places it in the cavity prepared for it inthe setting; this being done roller of arm 20 travels from g to h andbrings the tool 22 to position, shown in Figs. 1 to 2. (lam 10 now againreleases shaft 8 and allows springs 5 to move slide 4, which brings thetool 22 in contact with the setting. This tool spins the metal over theedge of the jewel and burnishes it. The tool .22 acts while the rolleris traveling from h to i, and just previous to its reaching the point icam 10 acts to relieve the pressure of tool 22 and from i to cam 21 actsto move slide 14 back, which brings tool 22 again to position for asecond squaring off of the setting. This latter operation takes placewhile the roller of arm 20 is traveling from 71; to Z. The setting isnow completed and while the portion of cam from Z to a is operating toreturn slide 14 to first position, cam 26 operates to open the chuck forthe operator to remove the finished article. The chuck remains open, ata, ready for the operation to be repeated.

The entire operation above described takes place during one revolutionof the main shaft 11.

Spindle 24 may be of any desired construction and is operated in anydesired manner.

I believe it to be new with me to determine the depth of the jewel-receiving recess or cavity formed by the tool of a jewel-settingmachine, by means of a calipering device which measures the depth of thejewel and means controlled by said calipering device for regulating theaction of said tool; hence I desire to include within the scope of myclaims any organization which includes a calipering device and meanscontrolled thereby for determining the depth of the jewel-receivingrecess.

I claim:

1. A jewel-setting machine provided with a calipering device formeasuring the depth of the jewel, and means controlled by saidcalipering device for determining the depth of the recess formed toreceive the jewel, as set forth.

2. A jewel-setting machine provided with a calipering device formeasuring the depth. of the jewel, and a gage controlled by saidcalipering device for limiting the movement of the setting-preparingtool, substantially as described and shown.

3. The combination in a jewel-setting machine, of a calipering devicefor measuring the depth of the jewel, a gage controlled by saidcalipering device for limiting the movement of the setting-preparingtool, and a locking device for securing the gage to position after ithas been moved by the calipering device, as and for the purposedescribed.

4. The combination in a jewel-setting machine, of a calipering devicefor measuring the depth of the jewel, a gage controlled by saidcalipering device for limiting the movement of the setting-preparingtool, a locking device for securing the gage to position after it hasbeen moved by the calipering device, and a longitudinally reciprocatingslide, carrying a transversely reciprocating slide provided with atool-carrier, said slides cooperating to advance and withdraw thetoolcarrier, for the purpose shown and described.

5. The combination in a jewel setting machine, of a chuck for holdingand rotating the setting, a setting-carrier provided with a feedingdevice and with a latch adapted to automatically look said device to thecarrier, means for moving said carrier longitudinally to first insert asetting in the chuck and then withdraw the carrier from the chuck andmeans for unlocking the feeding device when the carrier is moved topresent a setting to the chuck, as set forth.

6. The combination in a jewel setting machine, of a chuck for holdingand rotating the setting, a slide carrying tool adapted to operatesuccessively on a setting held by the chuck, mechanism for operatingsaid slide, substantially as described, a calipering de- Vice formeasuring the depth of a jewel, a movable gage for limiting the firstoperative movement of the tool carrying slide, connections between saidgage and the calipering device whereby the position of the gage isdetermined by the depth of the jewel and means for locking the gage inthe position to which it is moved by the calipering device, as setforth.

In testimony whereof I have signed my name to this specification, in thepresence of two subscribing witnesses, this 31st day of October, A. D.1891.

DUANE H. CHURCH.

Witnesses:

E. A. MARSH, A. D. HARRISON.

